1. Department of Endocrinology and Metabolism (J.T., N.P.D., E.M.v.d.V., S.R., S.K.R., J.A.R., A.M.P., N.R.B.), Leiden University Medical Center, 2300 RC Leiden, The Netherlands
2. Department of Psychological Medicine (E.B.), University of Auckland, Auckland 1010, New Zealand
3. Department of Medical Psychology (A.A.K.), Leiden University Medical Center, 2300 RC Leiden, The Netherlands